DR vs DA Explained: A Buyer's Guide to Authority Metrics

DR and DA are the two metrics you will see quoted on almost every backlink listing, and they are constantly confused with each other. Both try to express how authoritative a website is as a single number from zero to one hundred. But they come from different tools, are calculated differently, and mean slightly different things. For a backlink buyer, understanding the distinction is the difference between paying a fair price and overpaying for a number that does not reflect reality. This guide explains what each metric measures, where it comes from, and why neither one should ever be the only thing you look at.

If you are evaluating placements by authority, you may also want to read about our high DA backlinks and how we publish authority figures alongside verifiable traffic.

What is Domain Rating (DR)?

Domain Rating, or DR, is a metric from Ahrefs. It measures the strength of a website's backlink profile on a logarithmic scale from zero to one hundred. In plain terms, DR looks at how many other websites link to a domain and how strong those linking domains are themselves. A site with many links from strong domains earns a high DR. A site with few or weak links earns a low one.

The key thing to understand is that DR is almost entirely about backlinks. It does not directly measure traffic, content quality, or relevance. It is a backlink-based authority score, which makes it useful for understanding link strength but blind to whether anyone actually visits the site. Because the scale is logarithmic, the jump from DR 70 to DR 80 represents far more link strength than the jump from DR 20 to DR 30.

What is Domain Authority (DA)?

Domain Authority, or DA, is a metric from Moz. Like DR, it predicts how well a domain might rank, expressed on a zero to one hundred scale. DA is calculated from a blend of signals, including the linking root domains and the overall quality of a site's link profile, fed through a model that Moz trains against search results. It is meant to be a comparative predictor of ranking potential rather than a direct measure of any single thing.

The crucial point for buyers is that DA and DR are not interchangeable. They come from different crawlers with different link indexes, so the same site can score differently on each. A site might be DR 45 in Ahrefs and DA 38 in Moz, and neither number is wrong. They are simply two different tools' estimates of the same fuzzy concept.

DR vs DA: the practical differences

• Source. DR comes from Ahrefs, DA comes from Moz. They use separate link databases.
• What they emphasize. DR is built primarily on backlink profile strength. DA blends several link-based signals into a ranking prediction.
• Comparability. You cannot directly compare a DR to a DA. Only compare DR to DR, or DA to DA.
• Gaming. Both can be inflated artificially by pointing spammy links at a domain, which is why neither should be trusted blindly.

Because both metrics are third party estimates rather than anything Google publishes, treat them as useful signals, not gospel. Google does not use DR or DA. They are industry tools that approximate authority, and they can be manipulated.

Why both metrics can lie

Here is the uncomfortable truth that the backlink market rarely advertises. Both DR and DA can be inflated. An operator who wants to sell links can point a flood of cheap links at a domain to push its DR or DA up, then charge a premium for placements on a site that is, underneath the number, low quality. The metric goes up. The actual value does not.

This is why buying on authority alone is a trap. A DR 60 site that was pumped up artificially is worth far less than its number suggests, and you would never know from the listing. The metric is a starting point for your evaluation, not a verdict. We cover the full set of signals you should weigh in what makes a quality backlink.

Why traffic matters more than either number

The single best defense against inflated metrics is to look at real organic traffic. A domain can fake a backlink profile, but it is much harder to fake a steady stream of real human visitors arriving from search. If a site has a high DR but almost no traffic, that gap is the clearest possible signal that the authority is hollow. Conversely, a site with genuine, verifiable traffic is almost certainly a real publication that real people read.

Traffic also tells you something the authority metrics cannot, namely whether the link will ever be seen by anyone. A contextual link in an article that thousands of people read each month has value beyond the ranking signal. A link on a page nobody visits is just a line in a database. This is why we publish a verifiable Google Analytics traffic figure alongside the DR for every portal in our network, so the two can be checked against each other.

How to read authority metrics honestly

You do not need to abandon DR and DA. You need to use them correctly, as one input among several. Here is a sensible approach.

1. Use DR or DA to shortlist, not to decide. Treat the number as a rough filter.
2. Verify the metric yourself in the relevant tool rather than trusting the seller's quoted figure.
3. Cross-check with real traffic. A high authority site with little traffic is a warning sign, not a bargain.
4. Compare like with like. Never weigh a DR against a DA, since they come from different tools.
5. Look at the link profile's quality, not just its size, since spammy links can inflate both numbers.
6. Confirm relevance, because a relevant DR 35 site often beats an irrelevant DR 65 one.

What about the other authority metrics?

DR and DA dominate the conversation, but you will run into a few related metrics, and it helps to know where they fit. Moz also reports Page Authority, which estimates the strength of a single page rather than the whole domain, useful when you care about the specific article your link will sit on. Majestic uses Trust Flow and Citation Flow, which try to separate the quality of a link profile from its sheer quantity, with Trust Flow leaning toward how trustworthy the linking sources are. Semrush has its own Authority Score that blends link data with traffic and other signals.

The practical lesson across all of them is the same. Each is a proprietary estimate from a single vendor, calculated its own way, and none is published or used by Google. The more metrics agree that a site is strong, the more confidence you can have, but no single score is the truth. Treat them as a panel of opinions, weight them with real traffic, and never let one number make the decision for you.

The bottom line

DR and DA are useful shorthand for authority, but they are estimates from competing tools, and both can be gamed. The buyers who get the most for their money treat authority as one factor, verify the number independently, and lean hardest on real organic traffic as the truth test. Because we own the publications in our network, we can publish both authority and verifiable analytics traffic openly, so you never have to take a number on faith.

To see how authority and traffic appear together on real inventory, review our high DA backlinks. The number is a starting point. The traffic is the proof.